Ask Any Hour - Do I Need to Flush My Water Heater?


Dear Any Hour,

I was talking to my neighbor recently and they mentioned getting ready to flush their water heater. I have never done that and it made me wonder -- do I need to be flushing my water heater? And if so, why?

- Stephen M.

Ask Any Hour - do I need to flush my water heater

Your water heater needs regular maintenance just like other machines such as your car. As water runs through your water heater, it leaves behind minerals such as sediment, calcium, and minerals that settle and build up in the bottom of the tank. This creates a layer of sediment that makes heating the water in your tank more difficult. Also, the heating element of a water heater is at the bottom of the tank. If the heating element is being blocked by sediment and other materials, then your water heater has to work harder to heat the water.

Therefore, it is recommended that you flush your water heater at least once per year. Doing this can help prevent the potential problems that built-up sediment can bring over time and can even increase the life of your water heater.

There are really no downsides to flushing a water heater. Sediment build-up causes damage and it is more expensive to leave it than to just flush it out regularly.

Leaving sediment build up in your water heater can not only cause it to work harder, but also lead to more problems such as pipe bursting, loss of water pressure, or even the break-down of the tank itself.

Doing a water heater flush is something that you can do yourself. Here's one of our DIY videos to show you how to - How to Flush A Water Heater - Basic Flush

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Feb 23rd 2021

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